QueueInterface<String> myQueue = new LinkedQueue<>();
myQueue.enqueue("Jim");
myQueue.enqueue("Jess");
myQueue.enqueue("Jill");
myQueue.enqueue("Jane");
myQueue.enqueue("Joe");

String front = myQueue.getFront(); // Returns "Jim"
System.out.println(front + " is at the front of the queue.");

front = myQueue.dequeue();         // Removes and returns "Jim"
System.out.println(front + " is removed from the queue.");

myQueue.enqueue("Jerry");

front = myQueue.getFront();        // Returns "Jess"
System.out.println(front + " is at the front of the queue.");

front = myQueue.dequeue();         // Removes and returns "Jess"
System.out.println(front + " is removed from the queue.");
// Version 4.0